Returns the sine of its radian argument.

    Format

      #include  <math.h>

      double sin  (double x);

      float sinf  (float x); (Integrity servers, Alpha)

      long double sinl  (long double x); (Integrity servers, Alpha)

      double sind  (double x); (Integrity servers, Alpha)

      float sindf  (float x); (Integrity servers, Alpha)

      long double sindl  (long double x); (Integrity servers, Alpha)

1  –  Argument

 x

    A radian expressed as a floating-point number.

2  –  Description

    The sin functions compute the sine of x measured in radians.

    The sind functions compute the sine of x measured in degrees.

3  –  Return Values

    x                  The sine of the argument.
    NaN                x = Infinity or NaN; errno is set to EDOM.
    0                  Underflow occurred; errno is set to ERANGE.